Conventional Loan Reserve Documentation for Bank and Brokerage Assets

The Quick Read: Reserve documentation is the paperwork that proves you still hold liquid assets after the purchase closes. Bank accounts are proven with complete statements, and brokerage accounts with statements that show ownership, holdings and value. Funds used to close come out first, and whatever remains is what gets counted as reserves.

Most of the friction on these files isn’t the money itself. It’s the paperwork around it: a missing page, a statement in the wrong name, a transfer nobody explained. This article walks through what reserves are, how they’re measured, how each asset type is documented, and where the general rule breaks.

Lendmire’s conventional loan programs are arranged through wholesale lenders, and the documentation habits below apply across them. Every program figure here is subject to lender guidelines and full file review. Nothing here is a commitment to lend.

Key Terms Defined

• Reserves: the months of your housing payment you could cover from financial assets after closing.
• Funds to close: the down payment, closing costs and prepaid items paid at the table.
• PITIA: principal, interest, taxes, insurance and any association dues, the payment reserves are measured against.
• Depository asset: cash held in checking, savings, money market accounts or CDs.
• Non-depository asset: stocks, bonds and mutual funds held in a brokerage account.
• Vested: owned outright, with no condition that could take it back.
• Large deposit: a single deposit above 50% of your monthly qualifying income, which the lender must review.
• Liquidation proof: evidence that securities were sold, usually a sale confirmation and the deposit of the proceeds.

What Are Reserves, and How Are They Measured?

Reserves are counted in months. Per the Fannie Mae Selling Guide, reserves are the number of months of the subject mortgage’s qualifying payment (based on PITIA) that a borrower could pay from financial assets. The math is simple. Take the assets left after closing, then divide by the monthly housing payment.

Order matters. Funds to close come out of your available assets first. Reserves are what’s left. The same dollars can’t do two jobs, which is why a buyer who sells stock to fund the down payment has fewer reserve dollars afterward.

Here’s a plain scenario. A buyer on a one-unit primary residence has a checking account, a savings account and a brokerage account. The down payment and closing costs come from checking and savings. Whatever sits in those accounts after closing, plus the brokerage value, is the reserve total. The underwriter wants documents for every account in that total, not just the ones used at the table.

Do You Even Need Reserves?

Often, no. Not as a base rule. The agencies’ base tables carry no reserve requirement for a one-unit primary residence purchase. But the base table isn’t the whole story. Required reserves depend on the transaction, occupancy, amortization type, number of units and how many other financed properties the borrower owns.

The automated underwriting findings can also ask for more than the guide’s minimum. Fannie Mae’s desktop underwriting language refers to total funds to be verified as DU requires, or a greater amount if stated in the DU message. Lender overlays can sit on top of both.

Where reserves do show up, they’re specific. Fannie Mae calls for two months on a second home. It calls for six months on a two- to four-unit principal residence, and on a cash-out refinance with a ratio above 45%. Occupancy decides the leverage too: a second home runs to 90% LTV under the programs Lendmire places, versus 95% on a standard principal-residence purchase. Check the current minimums with your loan officer before you assume zero. Final terms depend on lender guidelines, property type, leverage, and the borrower’s complete credit picture.

How Is a Bank Account Documented?

Bank accounts are the easy asset, and still the one that gets kicked back most. The Selling Guide lists acceptable verification as a Form 1006 verification of deposit, bank or investment statements, retirement statements showing the vested amount, or third-party asset verification data. In practice, most borrowers send statements or connect an account to a verification vendor.

On a purchase, statements must cover the most recent full two-month period of account activity, which is 60 days, or the most recent quarter if the bank reports quarterly. A refinance needs the most recent full one-month period, per the guide’s verification section.

What the underwriter checks on each statement:

• The institution’s name.
• You as the account holder.
• The account number, at least the last four digits.
• Every transaction in the period.
• The period covered and the ending balance.

Here’s what gets rejected:

• Screenshots and partial pages.
• Statements with an odd page count, where a page is missing.
• Statements in someone else’s name.
• Unverified funds. Those can’t be used for down payment, closing costs or reserves.

Business accounts can work when you’re properly documented as an owner. Expect an extra step to show that. Funds in a spouse’s or relative’s account don’t count unless that person is a borrower on the loan.

How Is a Brokerage Account Documented?

Brokerage accounts count in full for reserves. Under the Fannie Mae announcement that replaced the old standard reduction, 100% of the value of vested stocks, government bonds and mutual funds may be considered for reserves, and liquidation is not required. You can leave the investments where they are.

Value comes from the most recent monthly or quarterly statement, net of any margin account balance. Margin debt matters. If you’ve borrowed against the portfolio, the usable value is lower. A related rule covers loans secured by assets: if you pledge a financial asset for a loan and also count it as reserves, the lender reduces the asset value by the loan proceeds and related fees.

Government bonds are valued at purchase price unless you can document the redemption value. Vested holdings are acceptable. Unvested options, restricted stock not yet vested, and stock in an unlisted corporation are not.

A brokerage statement has to show:

• The firm and you as the owner.
• A partial or full account number.
• The holdings, with values.
• The statement period.
• Any margin balance or loan against the account.

Retirement accounts held in securities follow the same valuation rules, using the vested amount. For reserves, the guide doesn’t require you to withdraw the funds. Confirm how your lender treats them, since lender overlays vary.

Does the Stock Have to Be Sold?

It depends on what the money is for. Reserves: no. Down payment or closing costs: usually yes, with a condition.

If securities fund the down payment or closing costs, Fannie Mae requires evidence of liquidation. The exception is when the asset value is at least 20% more than the funds needed. That cushion is the line between a clean file and a request for sale confirmations.

The practical advice is to decide which accounts fund closing and which stay invested as reserves. Mixing them on the fly is where files get messy.

Bank vs. Brokerage: Side by Side

Large Deposits, Transfers and Gift Funds

A large deposit is defined relative to your income, not a fixed dollar figure. Fannie Mae’s threshold is a single deposit exceeding 50% of total monthly qualifying income, per its depository accounts rules. Lenders must also investigate any sign of borrowed funds. Freddie Mac uses a 50% threshold too, and the seller must consider liabilities from any borrowed funds, per Freddie Mac’s Guide section 5501.1.

Moving money between your own accounts is where borrowers trip. Transfers from savings to checking create a deposit in one account and a withdrawal in another. The underwriter has to see both ends. If you move money, keep both statements and a short written note.

A good explanation letter has four parts: the amount, the date, where the money came from, and the account it landed in. Attach the evidence. A paycheck, a sale confirmation or a transfer record usually does it.

Eligible gift funds can count toward reserves. Gifts of equity can’t. Interested-party contributions and personal unsecured loans are not acceptable sources.

Where the General Rule Breaks

A few cases change the answer.

• Other financed properties. Fannie Mae adds reserves based on how many other financed properties you own, applied to those mortgage balances. If you’re keeping a prior home, expect more.
• Multiple applications. Freddie Mac allows the same assets to meet reserves on each mortgage when a lender processes several applications for one borrower. Each loan still has to be satisfied after closing.
• Assets used as income. Assets counted as qualifying income generally can’t be counted again as reserves.
• Cryptocurrency. Freddie Mac requires crypto to be exchanged for U.S. dollars if it will be used. Treat it as a cash-conversion item and ask early.
• Low-down-payment programs. HomeReady and Home Possible carry their own reserve rules and an income limit of 80% of area median income.
• Rule changes. Freddie Mac’s asset section already references newer requirements on accumulated assets as income, with a later mandatory version. Older text may not be final.

One more caution. You’ll see claims that brokerage assets are discounted for reserves. Fannie Mae removed its standard reduction. Your lender’s guidelines govern your file.

Timing and Document Age

Statements go stale. Balances also move between application and closing. If a market drop pulls the brokerage value down, the reserve total drops with it. Plan some cushion above the required months.

Lenders often set their own limits on how old a statement can be. Ask for the window up front, and send the next statement the day it posts. A fresh statement is cheaper than a condition.

Automated asset verification can reduce paperwork. When desktop underwriting validates assets, Fannie Mae doesn’t enforce representations and warranties on asset sufficiency, and Freddie Mac offers similar relief through its automated assessment. Both tie that relief to specific findings. A borrower shouldn’t count on it.

Step by Step: From Gathering to Clearing Conditions

1. Find out if reserves apply. Ask your loan officer for the requirement on your occupancy, unit count and loan type.

2. List every account. Include bank, brokerage and retirement accounts, and note whose name is on each.

3. Pick the closing accounts. Decide which funds pay the down payment and closing costs. Leave the rest as reserves.

4. Pull complete statements. Get every page, with the period, owner and balance visible. No screenshots.

5. Mark large deposits. Compare each deposit to 50% of your monthly qualifying income, and document the source.

6. Write a short note for transfers. Link both sides with statements.

7. Check brokerage status. Confirm vesting and any margin balance. Decide whether you’re selling anything.

8. Respond to conditions the same day. Send the next statement as soon as it posts.

Pre-Submission Checklist

• Every statement page, in your name, with the full period.
• Source documents for each large deposit.
• A note and both statements for each internal transfer.
• Brokerage statements showing holdings, value and any margin balance.
• Proof of vesting for any retirement or equity compensation.
• Liquidation records for any securities sold to close.
• A cushion above the required months.

What Does the Decision Look Like in Practice?

For most primary-residence buyers, the decision is simple. Decide which accounts pay for closing. Keep the rest invested or in cash. Document them cleanly and early.

Where the decision gets harder is the marginal file. A thin cushion after closing can mean added conditions, or a weaker automated finding. Selling stock to close shrinks reserves and adds liquidation paperwork. Leaving it invested keeps it counted at full value. Shifting funds between accounts might fix one problem and create a deposit to explain.

If you are buying a home and want to see whether a conventional loan fits your file, Lendmire can help you compare the options and what each one asks of the file.

For your own numbers, request a scenario review with Lendmire.

About Lendmire

Lendmire is a mortgage brokerage (NMLS# 2371349) licensed for consumer mortgage lending in 16 states, arranging FHA, VA, conventional and jumbo purchase and refinance loans through a wholesale lending network. Eligibility is determined by the lender on each file. Scotsman Guide named Lendmire a Top Mortgage Workplace in both 2025 and 2026.

References

1. Fannie Mae Selling Guide B3-4.1-01 Minimum Reserve Requirements

2. Fannie Mae Selling Guide B3-4.2-01 Verification of Deposits and Assets

3. Fannie Mae Selling Guide Announcement SEL-2015-07

4. Fannie Mae Selling Guide B3-4.2-02 Depository Accounts

5. Freddie Mac Guide 5501.1 Funds required for the Mortgage transaction